No More Costly Water Filter Replacements
Having a high-end water filter freeze and crack can require a costly replacement, and leave you in a jam out in the middle of nowhere. Keep your pumps and filters from becoming frozen or clogged with ice by stashing them next to your warm bottle of water in your pack during the day, and keep them in your sleeping bag with you at night. You can keep your water in your bag, too. Yes, it's annoying to have stuff rolling around in your bedding, but the water bottle should be full of hot water, and this bed warming technique can add enormous comfort to cold backcountry nights.